/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1992, 1993, 1994
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

static int rm_path(char *);
static void usage(void) __dead2;

static int pflag;
static int vflag;

int
main(int argc, char *argv[])
{
        int ch, errors;

        while ((ch = getopt(argc, argv, "pv")) != -1)
                switch(ch) {
                case 'p':
                        pflag = 1;
                        break;
                case 'v':
                        vflag = 1;
                        break;
                case '?':
                default:
                        usage();
                }
        argc -= optind;
        argv += optind;

        if (argc == 0)
                usage();

        for (errors = 0; *argv; argv++) {
                if (rmdir(*argv) < 0) {
                        warn("%s", *argv);
                        errors = 1;
                } else {
                        if (vflag)
                                printf("%s\n", *argv);
                        if (pflag)
                                errors |= rm_path(*argv);
                }
        }

        exit(errors);
}

static int
rm_path(char *path)
{
        char *p;

        p = path + strlen(path);
        while (--p > path && *p == '/')
                ;
        *++p = '\0';
        while ((p = strrchr(path, '/')) != NULL) {
                /* Delete trailing slashes. */
                while (--p >= path && *p == '/')
                        ;
                *++p = '\0';
                if (p == path)
                        break;

                if (rmdir(path) < 0) {
                        warn("%s", path);
                        return (1);
                }
                if (vflag)
                        printf("%s\n", path);
        }

        return (0);
}

static void
usage(void)
{

        (void)fprintf(stderr, "usage: rmdir [-pv] directory ...\n");
        exit(2);
}